IndividualActive
Karissa Johnson
NPI 1720911936 · Registered Nurse · Charleston, SC
Karissa Johnson is a Registered Nurse provider in Charleston, SC (NPI 1720911936).
Provider details
- NPI number
- 1720911936
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- RN278191R (SC)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(52/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
99 Jonathan Lucas St
Charleston, SC 29425-8900
Phone: (843) 792-8515
Street-level locationGet directions
Mailing address
101 Fair Ridge Rd
Blythewood, SC 29016-7887
Registry dates
- Enumerated
- 2026-06-06
- Last updated
- 2026-06-06
- Certified
- 2026-06-06
Frequently asked questions
- What is Karissa Johnson's NPI number?
- Karissa Johnson's National Provider Identifier (NPI) is 1720911936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karissa Johnson's specialty?
- Karissa Johnson is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Karissa Johnson located?
- Karissa Johnson's practice location on file with NPPES is 99 Jonathan Lucas St, Charleston, SC 29425-8900.
- What is Karissa Johnson's phone number?
- The practice phone number listed in the NPPES registry for Karissa Johnson is (843) 792-8515.
- Is Karissa Johnson's NPI active?
- Yes — Karissa Johnson's NPI (1720911936) is active in the NPPES registry as of the last update on 2026-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.